JVC tt-101 repair


Got a JVC QL-10 with a 120V TT-101. Speed is wonky. Sometimes plays fine, sometimes spins a 1000 RPM, somtimes runs forward & then backward. Could use some help.
128x128gary7
@lewm

A good repairer after having spent many hours at TT101 and having solved several problems, he gave up and gave it back to me; now I’m waiting for another good repairman who will do it dedicating a bit of time when he feels like it.

He is informed that he will not be able to ask for a lot of money in case of success because the expense can not exceed the value of the turntable used and he accepted very willingly because this will be a great challenge for him; it is a repairer who is one of the largest and most important reel to reel repairers in Italy.

If it fails then it will be impossible to repair it without dedicating dozens of dozens of hours on it.
As far as torque goes, my TT-101 has plenty. As stated in the service manual, the LED reads 33.33 in 3 seconds after the button is pushed. Which as stated in the SM it hits 0.6 secs after being pushed. I clean my record on it with wet brush before I vacuum on my Record Doctor. Every once in a while it will drop to 33.32 rpm. I also adjusted the the stop pot so it come to a dead stop. Very happy with it.
Hello group!
i just inherited a:

JVC QL-10 TT-101
Victor Company of Japan Ltd plinth,
120v 60hz.
And it has a Lustre GST-801 tonearm.

I plugged it in and it ran perfect for about 10 minutes (33.33)
After that, it just took off to over 60rpms and it won’t slow down.
it was my uncles, he bought it new in the 70s.
it hasn’t been use for many years.
anyone else had this problem?
Thank you.

anyone else had this problem?

In many we have had very very similar problems.
Someone has solved them, others (like me) are still working.

Look this...

https://forum.audiogon.com/discussions/vintage-dd-turntables-are-we-living-dangerously